Angiographic features of polypoidal choroidal vasculopathy using indocyanine green angiography and optical coherence tomography angiography: A comparative study

2019 ◽  
Vol 30 (5) ◽  
pp. 1076-1081
Author(s):  
Sumit Randhir Singh ◽  
Prakhar Goyal ◽  
Deepika C Parameswarappa ◽  
Abhilash Goud ◽  
Jay Chhablani
Keyword(s):  
Optical Coherence Tomography ◽  
Indocyanine Green ◽  
Polypoidal Choroidal Vasculopathy ◽  
Indocyanine Green Angiography ◽  
Optical Coherence Tomography Angiography ◽  
Network Size ◽  
Vascular Network ◽  
Optical Coherence ◽  
Branching Vascular Network ◽  
Choroidal Vasculopathy

Background: To compare the vascular lesion size using optical coherence tomography angiography and indocyanine green angiography in eyes with polypoidal choroidal vasculopathy. Methods: Treatment-naïve cases (46 eyes of 44 patients) with polypoidal choroidal vasculopathy were retrospectively analyzed. The comparison of mean area of branching vascular network and polyp detection rate was done between indocyanine green angiography and optical coherence tomography angiography and correlated with various optical coherence tomography features. Results: The mean age of the study patients was 62.33 ± 10.74 years. The mean branching vascular network size was 7.47 ± 5.74 and 7.51 ± 5.69 mm² in indocyanine green angiography and optical coherence tomography angiography, respectively, with an excellent correlation (r = 0.997). Optical coherence tomography angiography overestimated (mean ± SD: 0.28 ± 0.19 mm²) and underestimated branching vascular network area (0.36 ± 0.33 mm²) in 23 eyes each as compared to indocyanine green angiography. However, the difference in branching vascular network size was not statistically significant (p = 0.53). Indocyanine green angiography and optical coherence tomography angiography could identify polyps in 43 of 46 (93.48%) and 32 of 46 (69.57%) patients, respectively. Conclusion: Branching vascular network size measurements with indocyanine green angiography and optical coherence tomography angiography were comparable and showed significant correlation, albeit the polyp identification rate was lower with optical coherence tomography angiography. Optical coherence tomography angiography may serve as a useful substitute to indocyanine green angiography in measurements of branching vascular network for photodynamic therapy and follow-up of polypoidal choroidal vasculopathy eyes.

scholarly journals Comparison of Indocyanine Green Angiography and Optical Coherence Tomography Angiography for Polypoidal Choroidal Vasculopathy

2021 ◽  
Vol 62 (9) ◽  
pp. 1198-1206
Author(s):  
Jonghyun Kim ◽  
So Min Ahn ◽  
Cheolmin Yun ◽  
Seong-Woo Kim ◽  
Jaeryung Oh
Keyword(s):  
Optical Coherence Tomography ◽  
Indocyanine Green ◽  
Polypoidal Choroidal Vasculopathy ◽  
Indocyanine Green Angiography ◽  
Optical Coherence Tomography Angiography ◽  
Optical Coherence ◽  
Polyp Detection Rate ◽  
Group 2 ◽  
Choroidal Vasculopathy ◽  
Group 1

Purpose: To assess the diagnostic value of optical coherence tomography angiography (OCTA), and the factors affecting the diagnosis of polypoidal choroidal vasculopathy (PCV) by OCTA and indocyanine green angiography (ICGA). Methods: The numbers and area of polyps, and the presence and area of a branched vascular network (BVN) as revealed by ICGA and OCTA, were retrospectively analyzed in 43 patients with active PCV. The patients were divided into two groups according to whether the number of polyps matched between the two methods: group 1, equal number of polyps revealed by ICGA and OCTA; group 2, different number of polyps revealed by ICGA and OCTA. Results: In 43 PCV patients, the total number of polyps was 1.47 ± 0.83 in ICGA and 1.07 ± 0.91 in OCTA (<i>p</i> < 0.001), and the polyp area was 0.27 ± 0.42 mm<sup>2</sup> in ICGA and 0.17 ± 0.15 mm<sup>2</sup> in OCTA (<i>p</i> = 0.023). BVN was found in 33 eyes (76.7%) by ICGA and 29 eyes (67.4%) by OCTA (<i>p</i> < 0.001). The BVN area was 3.61 ± 2.59 mm<sup>2</sup> in ICGA and 2.74 ± 2.76 mm<sup>2</sup> in OCTA (<i>p</i> = 0.002). Central retinal thickness and central choroidal thickness were significantly greater in group 2 than group 1 (<i>p</i> < 0.001, respectively). Subretinal fluid (SRF) (<i>p</i> = 0.009) and subretinal hemorrhage (SRH) (<i>p</i> = 0.005) were significantly more prevalent in group 2 than group 1. Polyp height (<i>p</i> = 0.022) and diameter (<i>p</i> = 0.042) were significantly greater in group 2 than group 1. Conclusions: OCTA is a supplementary diagnostic technique for detecting PCV. The presence of SRF and SHR, and large polyp height and diameter, were associated with the polyp detection rate of OCTA for PCV.

scholarly journals Clinical features and prognosis of polypoidal choroidal vasculopathy with different morphologies of branching vascular network on optical coherence tomography angiography

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Shang-Te Ma ◽  
Chu-Hsuan Huang ◽  
Yun-Chia Chang ◽  
Tso-Ting Lai ◽  
Yi-Ting Hsieh ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Clinical Features ◽  
Polypoidal Choroidal Vasculopathy ◽  
Optical Coherence Tomography Angiography ◽  
Vascular Network ◽  
Optical Coherence ◽  
Branching Vascular Network ◽  
Type 3 ◽  
Choroidal Vasculopathy

AbstractThis study highlights the clinical features and treatment response of polypoidal choroidal vasculopathy (PCV) among three different branching vascular network (BVN) morphologies in optical coherence tomography angiography (OCTA), and further correlates the BVN features with those under fluorescent angiography (FA) and indocyanine green angiography (ICGA). In total, we reviewed 70 eyes with PCV followed up for > 12 months. OCTA, ICGA and FA images were obtained at baseline and post-treatments. BVN was assessed using OCTA and divided into three types by a previously described BVN classification: type 1 (trunk), type 2 (glomeruli), and type 3 (stick). At baseline, type 1 BVN had the poorest vision and thinnest subfoveal choroidal thickness (SFCT), whereas type 3 had the best vision and thickest SFCT. The aforementioned trend sustained after treatments. Each BVN morphology in OCTA showed typical features in FA + ICGA and encompassed significant correlation (p = 0.004). In conclusion, OCTA is an innovative imaging tool for the detection and classification of BVN in PCV. Furthermore, OCTA has advantages of being noninvasive and free of systemic toxicities. The BVN can be divided into three types based on morphological characteristics in OCTA, which play crucial roles in clinical presentations and treatment outcomes.

scholarly journals Polypoidal Choroidal Vasculopathy in Congolese Patients

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Nelly N. Kabedi ◽  
David L. Kayembe ◽  
Gloria M. Elongo ◽  
Jean-Claude Mwanza
Keyword(s):  
Optical Coherence Tomography ◽  
Indocyanine Green ◽  
Polypoidal Choroidal Vasculopathy ◽  
Indocyanine Green Angiography ◽  
Clinical Presentation ◽  
Case Series ◽  
Systemic Hypertension ◽  
Optical Coherence ◽  
Blurred Vision ◽  
Choroidal Vasculopathy

Purpose. Polypoidal choroidal vasculopathy (PCV) is a visually debilitating disease that mostly affects people of African and Asian heritage. Indocyanine green angiography (ICGA) is the recommended exploratory method for definitive diagnosis. The disease has been extensively described in Asians and Caucasians, but not in Africans. This study was conducted to document the clinical presentation and optical coherence tomography features of polypoidal choroidal vasculopathy (PCV) in Congolese patients. Methods. A prospective case series of patients with PCV was performed between January 2017 and June 2019. Routine ocular examination was performed including best corrected visual acuity measurement, slit-lamp examination, dilated direct fundoscopy, and spectral domain optical coherence tomography (OCT). The diagnosis was based on a combination of clinical and OCT signs. Results. Fourteen patients were diagnosed with PCV during this period. The average age was 64.7 ± 6.9 years. There were 8 females. Ten (71.4%) patients had systemic hypertension. Most patients (n = 9, 64.3%) had bilateral involvement. Blurred vision was the most common complaint (71.4%). The main clinical presentation was subretinal exudates, seen in 19 (82.6%) eyes of 11 (78.6%) patients and subretinal hemorrhage in 10 (43.5%) eyes. Macular localization was found in 16 eyes (69.5%) of 12 (85.7%) patients. Drusen were observed in 35.7% of the patients. On OCT imaging, thumb-like pigment epithelial detachment and subretinal exudation were the most frequent features, observed in 92.9% and 71.4% of the patients, respectively. Conclusions. PCV in Congolese patients showed features that are more similar to those observed in Caucasians. In this setting where indocyanine green angiography is not available, OCT facilitates the diagnosis of PCV.

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